Jumping-5 min quick sketch

I really need more practice in drawing real life people. I did this during lunch at work (I had forgot my sketchpad and had to borrow printer paper. I looked at the back of a magazine (our break room has several scattered about...Us, People, The Examiner ...y'know, as the MIB would call them, the "hot sheets"). And saw an advertisement for a Reality Show (Summer Camp, I think...I don't watch much TV) with several people jumping into a lake. I picked one and started sketching. I did this in about 5 minutes. I'll post a comparison pic in a bit.